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Date: Mon, 09 Oct 2023 20:23:08 +0200
From: "Arnd Bergmann" <>
To: "Kees Cook" <>
Cc: "Arnd Bergmann" <>,
 "Marcel Holtmann" <>,
 "Johan Hedberg" <>,
 "Luiz Augusto von Dentz" <>,
 "David S . Miller" <>,
 "Eric Dumazet" <>, "Jakub Kicinski" <>,
 "Paolo Abeni" <>, "Chun-Yi Lee" <>,
 "Luiz Augusto von Dentz" <>,,
 "Iulia Tanasescu" <>,
 "Wenjia Zhang" <>,,
 Netdev <>,
Subject: Re: [PATCH] Bluetooth: mark bacmp() and bacpy() as __always_inline

On Mon, Oct 9, 2023, at 18:02, Kees Cook wrote:
> On Mon, Oct 09, 2023 at 05:36:55PM +0200, Arnd Bergmann wrote:
>> On Mon, Oct 9, 2023, at 15:48, Arnd Bergmann wrote:
>> Sorry, I have to retract this, something went wrong on my
>> testing and I now see the same problem in some configs regardless
>> of whether the patch is applied or not.
> Perhaps turn them into macros instead?

I just tried that and still see the problem even with the macro,
so whatever gcc is doing must be a different issue. Maybe it
has correctly found a codepath that triggers this?

If you are able to help debug the issue better,
see these defconfigs for examples:


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